Improvement in sawing-machines



CHARLES L. SCHULZ.

Improvement in Sewing-Machines..

.N0. 127,373. Patented May 28,172'.

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UNITED STATES CHARLES L. SCHULZ, OF BALTIMORE, MARYLAND. i

IMPROVEMENT IN SAWlNG-MACAHINES.

Specification forming part of Letters Patent No. 127,373, dated May 28,1872.

Specification describing aV certain Improvement in Sawing-Machines,invented by CHARLEs L. SCHULZ, of Baltimore, in the A county ofBaltimore and State of Maryland.

This invention relates to a machine mounted on a portable frame having atransportingwheel at 011e end and handles at the other; and consists inthe combination, with the saw, of a movable weight, whose ofiice is toregulate the pressure of the saw; also, in the combination of the rodonwhich said weight moves with a swinging guide, to enablethe saw to beraised or lowered; also, in the combination, with said weight-rod, ofaturn-hook, to enable the saw to be held up out of the way; and in thecombination, with the frame, of an apparatus for holding the log whilebeing sawn.

Figure l is a side elevation, and Fig. 2 is a plan view.

A is the frame aforesaid, the same having four legs, a, handles c, and awheel, e, placed on anaxle, e. The journals of this axle enter recessesbetween forks t' on the ends ofthe side bars m of the frame A. Saidjournals are held in` said recesses by means of pins n. By removing thepins a, the axle e can be disengaged from the bars m, and the frame Alet down on its legs a, which keep it steady during the process ofsawing, whereas, if left on the wheel c, the frame would be very liableto tip during the progress of the work. O is the saw-frame, and 0 thesaw. To the inner end of said frame a rod, 01, is pivoted, on which rodis placed a weight, 02, provided with a setscrew. This weight can beplaced in any desired position on the rod for the purpose of causing thesaw to bear more or less heavily on the wood, according to its nature,whether hard or soft, thus increasing the cutting capacity of the saw asmay be required. The rod o1 passes through a guide, rf, supported in thestandards r, which guide the pitman of the saw-frame. The guide r swingsin said standards, thus enabling the saw to be raised when desired. Whenthus raised, a hook, h, swinging in the frame A, is turned over the rodo1, to keep the saw elevated out of the way. A lever, t, is pivoted tothe frame A, so as to project over the crotch where the log lies. A rod,t, connects the longer arm of said lever with a crank, s1, in a shaft,s, mounted in the frame A above the lever. A handle, '32, projectsdownward from the end ofthe shaft s near the driving-crank x, by meansof which handle the lever t can be made to clamp or release the log. Thehandle s2 works in connection with a ratchet, x', on the adjacent sidebar m. The handles s2, crank a', hook h, and

weight o2, can all be operated from the same side of the machine.

I cla-ini as my inventionl. The combination, with the saw-frame O,

of the rod o1 and movable Weight 02,',as set forth:I

2. The combination of the saw-frame O, rod o1, swinging guide r', andstandards r, as specified.

8. The combination of the saw-frame O, rod ol, frame A, and turn-hook h,as described.

4. The combination of the frame A, lever t, rod t', shaft s and handles2, as explained.

CHARLES L. SCHULZ. Witnesses:

GEO. E. BROWN, A. BENDZ.

